In computer technology, daisy chain refers to a series of peripheral devices connected in series on a bus, where each device has an 'in' connector and an 'out' connector so the devices can be linked in series. The daisy chain can be extended by connecting the 'out' of one device to the 'in' of the last device in the chain with a cable. A SCSI chain is a well-known example that is used with some personal computer systems. More recently, the USB system also allows daisy-chaining. (Yes, it's been verbed.)
What's this got to do with daisies, you say? The connection comes from the similarity to the very old practice of making chains of daisy flowers by tying one to the next with its own stem to make a nice garland, necklace or bracelet for your girl or guy. The technique is simple: tie the stem of one flower into a loop that is small enough that you can thread the stem of another flower through it without the flower passing through. You then loop the stem of that flower and repeat until your daisy chain is as long as you want it. You can then tie the stem of the last flower to the flowerhead of the first flower to if you want to. Making daisy chains is a fun summer activity for kids.
Daisy-chained memory devices (article with image)
A bracelet (article with image)